/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.rocketmq.client.consumer;

import org.apache.rocketmq.common.protocol.RequestCode;

/**
 * Async message pulling interface
 * <p>
 * 异步拉取消息请求的回调函数.
 * <p>
 * client从broker拉取mq消息.
 * <p>
 * 请求类型:{@link RequestCode#PULL_MESSAGE}
 */
public interface PullCallback {

    void onSuccess(final PullResult pullResult);

    void onException(final Throwable e);
}
